the obama administration is urging north korea to release new imagine and another american held there for more than a year. >>> a new clue in the death of "fast & furious" actor paul walker. >> up next, the new security video that shows the fiery crash and it may help rule out one theory on what happened. >> speed was a factor in the deadly train derailment in new york. what the engineer says was the problem. >> and the bay area woman is showing no love to southwest after she says the carrier kicked her and her service dog off a plane in oakland. ,,,,,, friend on saturday. jeff ng has the tape and why it may s in >>> new video of the fiery crash that killed actor paul walker and a friend on saturday. jeff nguyen has the tape and why it may prove the car walker was in was not drag-racing. >> reporter: new video obtained by omg insider shows the car crash that killed "fast & furious" star paul walker. you can see an explosion and smoke and flames shooting about 20 feet into the air after impact. today walker's half-sister visited the crash site. >> huge heart. it was never about him. it